79910 : WebKit Inline Box Wrapper Handling Use-after-free Issue
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
7	667	about 1 year ago	about 1 month ago	9 times	100%

Timeline

Disclosure Date
2011-08-29

Description

WebKit contains a use-after-free error in the 'RenderBox::positionLineBox' function in WebCore/rendering/RenderBox.cpp when handling inline box wrappers. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.

Classification

Location: Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: PoC Public
Disclosure: Vendor Verified, Coordinated Disclosure
OSVDB: Web Related

Solution

The vendor has released a patch to address this vulnerability. There are no known workarounds or upgrades to correct this issue. Check the vendor advisory, changelog, or solution in the references section for details.

Products

Apple Inc.

Apple iOS

5.0.1

References

Security Tracker: 1026774
Related OSVDB ID: 79905 79906 79907 79908 79909 79911 79912 79913 79914 79915 79916 79917 79918 79919 79920 79921 79922 79923 79924 79925 79926 79927 79928 79929 79930 79931 79932 79933 79934 79935 79936 79937 79938 79939 79940 79941 79942 79943 79944 79945 79946 79947 79948 79949 79950 79951 79952 79953 79954 79955 79956 79964
CVE ID: 2011-2871 (see also: NVD)
Secunia Advisory ID: 48274 48288 48377
Mail List Post: http://lists.apple.com/archives/security-announce/2012/Mar/msg00000.html
http://lists.apple.com/archives/security-announce/2012/Mar/msg00001.html
http://lists.apple.com/archives/security-announce/2012/Mar/msg00003.html
Vendor Specific Advisory URL: http://support.apple.com/kb/HT5190
http://support.apple.com/kb/HT5191
http://support.apple.com/kb/HT5192
Vendor Specific Solution URL: http://trac.webkit.org/changeset/94001
Vendor Specific News/Changelog Entry: https://bugs.webkit.org/show_bug.cgi?id=66015 [ Auth Req'd ]
https://code.google.com/p/chromium/issues/detail?id=91911

Credit

Abhishek Arya (Inferno) - Google Chrome Security Team

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2012-03-09 | Disagree?

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